Separator For Lithium Secondary Battery And Lithium Secondary Battery Comprising Same

Abstract: Provided, according to the present invention, is a separator for a lithium secondary battery, the separator having excellent heat resistance, adhesive force and insulation properties. The separator for a lithium secondary battery, according to one aspect of the present invention, comprises: a porous polymer substrate; a first coating layer formed on one surface of the porous polymer substrate; a second coating layer formed on the other surface of the porous polymer substrate; a first aqueous binder layer formed on a surface of the first coating layer; and a second aqueous binder layer formed on a surface of the second coating layer, wherein the first coating layer and the second coating layer each comprise inorganic particles and a coating layer binder, the inorganic particles including aluminum nitride (AlN), and the first aqueous binder layer and the second aqueous binder layer each comprise a particulate binder which is of a different type from each other, the particulate binder including one or more types selected from a fluorine-based binder and an acrylic binder.

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